Results 81 to 90 of about 743,526 (404)

The action of certain substituted phenols on marine eggs in relation to their dissociation [PDF]

open access: yes, 1937
It has been shown by Clowes and Krahl (1, 2) that various substituted phenols as well as dinitrophenol increase the respiratory rate of marine eggs. Also, the highly interesting reversible block to cleavage, which they found to occur at the maximum of ...
Horowitz, Norman H., Tyler, Albert
core  

Lignin biomarkers as tracers of mercury sources in lakes water column [PDF]

open access: yes, 2009
This study presents the role of specific terrigenous organic compounds as important vectors of mercury (Hg) transported from watersheds to lakes of the Canadian boreal forest.
A Otto   +83 more
core   +1 more source

Knockout of the mitoribosome rescue factors Ict1 or Mtrfr is viable in zebrafish but not mice: compensatory mechanisms underlying each factor's loss

open access: yesFEBS Open Bio, EarlyView.
Mitochondria contain two mitoribosome rescue factors, ICT1 and MTRFR (C12orf65). ICT1 also functions as a mitoribosomal protein in mice and humans, and its loss is lethal. Although Mtrfr knockout mice could not be generated, knockout zebrafish lines for ict1 and mtrfr were established.
Nobukazu Nameki   +11 more
wiley   +1 more source

Review on Lipophilic and Hydrophilic Extractives in Tissues of Common Beech

open access: yesDrvna Industrija, 2016
Common beech (Fagus sylvatica L.) is one of the most widespread and economically important tree species in Europe and, therefore, represents a potential source of high value added extractives.
Viljem Vek, Primož Oven, Ida Poljanšek
doaj   +1 more source

Functional parameters of spermatozoa obtained by a new selection device

open access: yesFEBS Open Bio, EarlyView.
This study compares density gradient centrifugation and the LensHooke CA0™ device for sperm separation. DGC requires multiple steps, specialized equipment, and technical expertise. In contrast, the CA0 device offers key practical and methodological advantages, resulting in a faster, simpler, and more affordable sperm selection method.
Julio C. Chávez   +8 more
wiley   +1 more source

Growth, photosynthetic pigments, phenolic content and biological activities of Foeniculum vulgare Mill., Anethum graveolens L. and Pimpinella anisum L. (Apiaceae) in response to zinc [PDF]

open access: yes, 2017
The effect of zinc (Zn) on phenols, antioxidant activities (free radicals' scavenging activities, inhibition of lipid peroxidation, chelating activity and reducing power), and enzyme inhibition activities of acetylcholinesterase, lipoxygenase and ...
Ben Kaab, Leila Bettaieb   +6 more
core   +1 more source

Solid-phase extraction of antioxidant compounds from commercial cranberry extract and its antiradical activity [PDF]

open access: yesActa Periodica Technologica, 2007
This study is concerned with the fractionation and determination of major antioxidant compounds (phenols, flavonoids, anthocyanins and vitamin C) in commercial cranberry extract.
Tumbas Vesna T.   +4 more
doaj   +1 more source

Co‐overexpression of the caloric restriction‐induced mitochondrial factors PGC‐1α and MIPEP upregulates Phospho1 expression in adipocytes

open access: yesFEBS Open Bio, EarlyView.
Caloric restriction that extends lifespan induces the expression of PGC‐1α and MIPEP in white adipose tissue. In this study, co‐overexpression of Pgc‐1α and Mipep upregulated the gene expression of PHOSPHO1. These findings provide new insights into mitochondria‐related mechanisms underlying the effects of caloric restriction in adipocytes.
Mamiko Ishimatsu   +9 more
wiley   +1 more source

The biogeochemistry of carbon across a gradient of streams and rivers within the Congo Basin [PDF]

open access: yes, 2014
Dissolved organic carbon (DOC) and inorganic carbon (DIC and pCO2), lignin biomarkers and the optical properties of dissolved organic matter (DOM) were measured in a gradient of streams and rivers within the Congo Basin (Republic of Congo), with the aim ...
Aerts   +66 more
core   +1 more source

Incorporação de urucum como aditivo antioxidante em embalagens biodegradáveis a base de quitosana The incorporation of annatto as antioxidant additive based biodegradable packaging chitosan

open access: yesCiência Rural, 2013
O objetivo do trabalho foi desenvolver e caracterizar uma embalagem biodegradável, utilizando como matriz polimérica a quitosana, plastificada com glicerol, bem como avaliar o efeito da adição de um aditivo antioxidante natural (urucum) nas embalagens na
Maria Cecília Castelo Branco de Santana   +4 more
doaj  

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